Portable bluetooth speaker



Figure 3.1 is a perspective view of a portable bluetooth speaker showing the new design;

Figure 3.2 is another perspective view thereof;

Figure 3.3 is a front view thereof;

Figure 3.4 is a back view thereof;

Figure 3.5 is a left side view thereof;

Figure 3.6 is a right side view thereof;

Figure 3.7 is a top view thereof;

Figure 3.8 is a bottom view thereof;

Figure 3.9 is an enlarged view of using state thereof.

The fade-out portions, or the lighter gray portion, in Fig. 3.9 forms no part of the claimed design. 

CLAIM The ornamental design for a portable bluetooth speaker, and described. 